Quoting Websters as an authority on anything English is in itself suspect.
He can't even spell.
Mike
----- Original Message -----
From: "Jack C. Thompson" <tcl@xxxxxxxxxxxx>
To: <BOOK_ARTS-L@xxxxxxxxxxxxxxxx>
Sent: Thursday, May 08, 2003 7:49 AM
Subject: Re: [BKARTS] Alcohol-Ethanol
| Ed, et. al.,
|
| This is the last posting which I wish to make on this topic, but in
| the interest of your continuing education, 'proprietary,' according
| to my copy of Webster's New World Dictionary of the American Language,
| used as an adjective, means:
|
| "1. belonging to a proprietor. 2. holding property. 3. of property or
| proprietorship. 4. held under patent, trade-mark, or copyright by a
private
| person or company: as a _proprietary_ medicine."
|
| This is not the case with denatured alcohol. There is nothing private
| about the formulations, and the denaturants are all well known and, more
| or less, commonly available in commerce.
|
| Ben gave a short list; here is a slightly longer list of denaturants, by
| U.S. Government mandated formula:
|
| 1: 5 gal. approved wood alcohol (a)
| (a) Approved wood alcohol is wood spirit containing ketones, aldehydes,
| unsaturated compounds, etc., that render separation very difficult. In
order
| to be approved the wood alcohol must pass general tests for impurities and
| must be a wood distillation product. It is for this reason that all uses
| of Formula 3A are conditional.
|
| 2A: 2 gal. approved wood alcohol (a) and 2 gal benzene.
|
| 2B 0.5 gal. benzene (b)
| (b) This formula must be used in a closed and continuous process unless it
| can be shown that it is not practical to do so.
|
| 3A: 5 gal. commercially pure methyl alcohol (a)
|
| 3B: 1 gal. pine tar (pix liquida, U.S.P.)
|
| 4: 1 gal. of the following solution:
| 5 gal. of an aqueous solution containing
| 40% nicotine; 3.6 oz. methylene blue; water
| to make 100 gal.
|
| 6A: 15 gal. condensed fumes recovered in the
| process of manufacture of fulminate of
| mercury containing not less than 4 grams/100c
| of mixed aldehydes calculated as acetaldehyde.
|
| 6B: 0.5 gal. pyridine bases.
|
| 12A: 5 gal. benzene.
|
| 13A: 10 gal. ethyl ether.
|
| 17: 0.05 gal. (6.4 fluid oz.) animal oil (Dippel's oil)
|
| 18: 100 gal. vinegar containing not less than 9%
| acetic acid.
|
| 19: 100 gal. ethyl ether.
|
| 20: 5 gal. crude chloroform.
|
| 22: 10 gal. formaldehyde solution containing
| 37% formaldehyde.
|
| 23A: 10 gal. acetone, U.S.P.
|
| 23E: 9 lbs. oil of bitter almonds, U.S.P.
| 1 lb. salicylic acid, U.S.P.
|
| And that is only page one, of 5 1/4 pages.
|
| Ed belives that the recipes are proprietary, i.e., secret. They are
| not secret. Nor are they necessarily simple. Different industries
| and/or processes require one or more varieties of denatured ethyl alcohol.
|
| It is as simple as that. As bookbinders, our needs are not complicated,
| but it would probably not be a good idea to soak an old handmade sheet
| of glue-sized paper in, for instance, formula 22, because the formaldehyde
| would effectively tan the sizing, hardening the sheet.
|
| On the other hand, there might be situations where that would be a good
| idea.
|
| And that is why it is important to know what is contained within any
| compound or material which we may use in the pursuit of our craft.
|
| "And that's all I have to say about that." Forrest Gump
|
|
| Jack
|
|
|
| >Jack,
| >
| >The proven point was that denatured alcohol from the paint or hardware
store
| >is in essence a chemical dump and that it often contains a variety of
| >proprietary substances.
| >
| >Ed
|
|
| Thompson Conservation Lab.
| 7549 N. Fenwick
| Portland, Oregon 97217
| USA
|
| 503/735-3942 (ph/fax)
|
| http://home.teleport.com/~tcl
|
| "The lyfe so short; the craft so long to lerne."
| Chaucer _Parlement of Foules_ 1386
|
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BOOK_ARTS-L: The listserv for all the book arts.
For subscription information, the Archive, and other related
resources and links go to the Book_Arts-L FAQ at:
<http://www.philobiblon.com>
Archive maintained and suppported by Conservation OnLine
<http://palimpsest.stanford.edu>
***********************************************